[openstack-dev] [cinder] Midcycle Sprint Summary

Jay S. Bryant jsbryant at electronicjungle.net
Tue Aug 18 23:53:34 UTC 2015


Great summary.  We covered a lot of ground.

Thanks Mike!

On 08/17/2015 10:53 AM, Mike Perez wrote:
> A *summary* of the Cinder midcycle sprint, in attempt to keep your attention.
> Full meeting notes available [1].
>
> Image Caching
> =============
> Glance Cinder backend store + Cinder Image Caching are so similar, it would
> just be confusing to operators. We'll document only about the Cinder Image
> Caching since the Glance backend store is limited in comparison.
>
>
> Revisit Spec Review
> ===================
> The PTL in the future will be the only one to +2/A specs after sufficient +1's
> have been given, and notice of approval to follow in the Cinder meeting.
>
>
> When Specs and Blueprints are needed
> ====================================
> Done https://wiki.openstack.org/wiki/Cinder/how-to-contribute-new-feature
>
>
> People can guess UUID's that don't belong to them
> =================================================
> Who cares. In past security discussions this has been a moot point.
>
>
> Update Hypervisor about extending attached volumes
> ==================================================
> Add support to os-brick, but the Nova team has to be fine with this only
> supporting Libvirt for now.
>
>
> Microversions
> =============
> We're doing it.
>
>
> Getting rid of API extensions
> =============================
> Move obvious things over (volume attach, type manager) to core API controllers.
> Deprecate existing extensions and have these use core API controller code. Get
> rid of the silly os- prefix in endpoints. Use Microversions to know when the
> API has the new extensions in core controllers.
>
>
> Third Party CI for target drivers and zone manager drivers
> ==========================================================
> Yes. This is already happening for Brocade and Cisco in Liberty!
>
>
> Cinder <-> Nova API communication
> =================================
> Agreed on how the Cinder API should be used. It requires changes and
> a Microversion bump on the Nova side. Design summit session to follow.
>
>
> Out of tree drivers
> ===================
> No.
>
>
> Exposing force-detach of a volumes
> ==================================
> Yes, this will be in nova-manage in Liberty.
>
>
> HA and Cinder
> =============
> We need cross project consensus first. There are existing issues that can be
> fixed without a DLM. Fix those first. Mike Perez will be leading cross project discussion at the summit.
>
>
> Replication V2
> ==============
> John Griffith did extreme programming with the group and posted a review.
> A limited replication feature with async and manual failover should be in
> Liberty.
>
>
> ABC classes for each driver feature
> ===================================
> Keeping the current solution [2].
>
>
> [1] - https://etherpad.openstack.org/p/cinder-meetup-summer-2015
> [2] - http://lists.openstack.org/pipermail/openstack-dev/2015-June/067563.html
>




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